Refresh Method Example (OraSqlStmt)

This example demonstrates the use of parameters, the Refresh method, and the SQL property for the SqlStmt object. Copy and paste this code into the definition section of a form, then press F5.

Sub Form_Load ()

'Declare variables as OLE Objects.

Dim OraSession As Object

Dim OraDatabase As Object

Dim OraSqlStmt As Object

'Create the OraSession Object.

Set OraSession = CreateObject("OracleInProcServer.XOraSession")

'Create the OraDatabase Object by opening a connection to Oracle.

Set OraDatabase = OraSession.OpenDatabase("ExampleDb", "scott/tiger", 0&)

OraDatabase.Parameters.Add "EMPNO", 7369, 1

OraDatabase.Parameters("EMPNO").ServerType = 2 'ORATYPE_NUMBER

OraDatabase.Parameters.Add "ENAME", 0, 2

OraDatabase.Parameters("ENAME").ServerType = 1 'ORATYPE_VARCHAR2

Set OraSqlStmt = OraDatabase.CreateSQL("Begin Employee.GetEmpName (:EMPNO, :ENAME); end;", 0&)

'Notice that the SQL statement is NOT modified.

MsgBox OraSqlStmt.SQL

'Should display SMITH

MsgBox OraDatabase.Parameters("ENAME").Value

'Change the value of the empno parameter.

OraDatabase.Parameters("EMPNO").Value = 7499

'Refresh the dynaset.

OraSqlStmt.Refresh

'Should display ALLEN

MsgBox OraDatabase.Parameters("ENAME").Value

'Notice that the SQL statement is NOT modified.

MsgBox OraSqlStmt.SQL

'Remove the parameter.

OraDatabase.Parameters.Remove ("job")

End Sub